The first layout plan was approved in 1964. The plan called for uniformity: low residential buildings with square interior courtyards and identical tower blocks with a 42 by 24m base and a height of 100m.
Buildings of this kind were constructed in the late 1960s and early 1970s (roughly 1964-1973).

The first building was the Esso Building, completed in 1963. This was the only building which is owned by the firm that occupies it. Furthermore, it was not linked to the pedestrian mall. Some thirty years after it was built, demolition took place and on the area of the Esso Building now rises the Coeur Defense building.